It should at least help on any emulsion as far as I know. I believe MS Hardener is HCL, you could ask Ulano. Running it is probably the only way to find out but that could be a rough way to learn if it pinholes on you.
Can you drop diazo into the Ulano product? If so you could do that, dial a full 7-8 step exposure, harden and prob be all good to go.